Alert archive / Illinois / Jefferson County

Weather alerts in Jefferson County, Illinois, 2009

119 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Jefferson County and its neighbors

Each county as a circle sized by its count in 2009. Tap one for its archive.

Alerts
119
Warnings
19
Watches
24
Advisories
36
Busiest month
May27 alerts
Busiest day
May 8, 20097 alerts

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 5, 11:00 AM CSTWinter Weather AdvisoryPAH25 hr
Jan 6, 12:06 AM CSTMesoscale DiscussionSPC4 hr
Jan 14, 1:54 AM CSTWind Chill AdvisoryPAH32 hr
Jan 25, 4:15 AM CSTWinter Storm WatchPAH24 hr
Jan 26, 4:23 AM CSTWinter Storm WarningPAH55 hr
Jan 26, 6:59 PM CSTMesoscale DiscussionSPC5 hr
Jan 27, 6:25 PM CSTMesoscale DiscussionSPC6 hr
Feb 9, 1:27 AM CSTWind AdvisoryPAH17 hr
Feb 10, 12:50 AM CSTHigh Wind WatchPAH12 hr
Feb 10, 12:44 PM CSTHigh Wind WarningPAH31 hr
Feb 26, 7:42 PM CSTMesoscale DiscussionSPC93 min
Feb 26, 8:46 PM CSTSevere Thunderstorm WatchSPC6 hr
Mar 8, 9:26 AM CDTMesoscale DiscussionSPC64 min
Mar 8, 10:39 AM CDTTornado WatchSPC7 hr
Mar 8, 11:35 AM CDTMesoscale DiscussionSPC115 min
Mar 8, 12:03 PM CDTTornado WarningPAH42 min
Mar 8, 1:44 PM CDTWind AdvisoryPAH5 hr
Mar 10, 3:15 PM CDTMesoscale DiscussionSPC2 hr
Mar 10, 7:31 PM CDTMesoscale DiscussionSPC119 min
Mar 18, 2:22 PM CDTMesoscale DiscussionSPC113 min
Mar 24, 1:40 AM CDTWind AdvisoryPAH17 hr
Apr 2, 2:52 PM CDTAreal Flood AdvisoryPAH3 hr
Apr 2, 4:30 PM CDTAreal Flood AdvisoryPAH2 hr
Apr 3, 12:10 PM CDTFrost AdvisoryPAH21 hr
Apr 5, 8:43 AM CDTSevere Thunderstorm WarningPAH36 min
Apr 5, 10:50 AM CDTMesoscale DiscussionSPC115 min
Apr 5, 4:28 PM CDTFreeze WatchPAH12 hr
Apr 6, 3:35 AM CDTFreeze WatchPAH31 hr
Apr 6, 4:26 AM CDTFreeze WarningPAH29 hr
Apr 7, 10:58 AM CDTFreeze WarningPAH22 hr
Apr 9, 10:52 PM CDTSevere Thunderstorm WatchSPC4 hr
Apr 10, 12:50 AM CDTMesoscale DiscussionSPC85 min
Apr 19, 6:53 PM CDTAreal Flood AdvisoryPAH3 hr
Apr 19, 9:48 PM CDTFlash Flood WarningPAH117 min
Apr 25, 11:31 AM CDTLake Wind AdvisoryPAH7 hr
Apr 26, 4:16 AM CDTLake Wind AdvisoryPAH15 hr
Apr 27, 3:20 AM CDTLake Wind AdvisoryPAH14 hr
May 1, 4:08 AM CDTFlash Flood WatchPAH55 hr
May 7, 12:53 AM CDTDense Fog AdvisoryPAH8 hr
May 7, 6:14 PM CDTSevere Thunderstorm WatchSPC8 hr
May 7, 9:38 PM CDTMesoscale DiscussionSPC97 min
May 7, 11:46 PM CDTMesoscale DiscussionSPC89 min
May 8, 9:21 AM CDTTornado WatchSPC7 hr
May 8, 11:10 AM CDTFlash Flood WarningPAH6 hr
May 8, 12:56 PM CDTSevere Thunderstorm WarningPAH64 min
May 8, 1:57 PM CDTSevere Thunderstorm WarningPAH48 min
May 8, 2:16 PM CDTMesoscale DiscussionSPC89 min
May 13, 1:54 AM CDTWind AdvisoryPAH16 hr
May 13, 9:27 AM CDTMesoscale DiscussionSPC63 min
May 13, 1:15 PM CDTMesoscale DiscussionSPC30 min
May 13, 3:00 PM CDTTornado WatchSPC5 hr
May 13, 6:05 PM CDTMesoscale DiscussionSPC85 min
May 13, 11:27 PM CDTMesoscale DiscussionSPC93 min
May 14, 1:01 AM CDTSevere Thunderstorm WatchSPC5 hr
May 14, 1:30 AM CDTSevere Thunderstorm WarningPAH45 min
May 14, 2:01 AM CDTFlash Flood WarningPAH3 hr
May 15, 8:14 PM CDTMesoscale DiscussionSPC2 hr
May 16, 3:13 AM CDTLake Wind AdvisoryPAH16 hr
May 17, 10:35 AM CDTLake Wind AdvisoryPAH8 hr
May 25, 12:32 PM CDTMesoscale DiscussionSPC88 min
May 27, 1:49 PM CDTMesoscale DiscussionSPC116 min
May 30, 3:49 PM CDTSevere Thunderstorm WatchSPC11 hr
May 30, 6:01 PM CDTMesoscale DiscussionSPC59 min
May 30, 8:53 PM CDTMesoscale DiscussionSPC67 min
Jun 2, 11:58 AM CDTMesoscale DiscussionSPC92 min
Jun 2, 12:27 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 2, 3:47 PM CDTMesoscale DiscussionSPC88 min
Jun 2, 6:22 PM CDTMesoscale DiscussionSPC83 min
Jun 8, 8:49 AM CDTMesoscale DiscussionSPC86 min
Jun 8, 3:20 PM CDTMesoscale DiscussionSPC85 min
Jun 8, 4:33 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 10, 3:13 PM CDTMesoscale DiscussionSPC92 min
Jun 10, 7:10 PM CDTMesoscale DiscussionSPC65 min
Jun 10, 7:46 PM CDTTornado WatchSPC6 hr
Jun 10, 8:58 PM CDTMesoscale DiscussionSPC62 min
Jun 10, 11:43 PM CDTAreal Flood AdvisoryPAH3 hr
Jun 11, 3:07 PM CDTMesoscale DiscussionSPC53 min
Jun 11, 3:42 PM CDTMesoscale DiscussionSPC33 min
Jun 16, 12:41 AM CDTSevere Thunderstorm WatchSPC4 hr
Jun 16, 3:53 AM CDTMesoscale DiscussionSPC67 min
Jun 17, 3:07 PM CDTMesoscale DiscussionSPC23 min
Jun 18, 4:06 PM CDTHeat AdvisoryPAH27 hr
Jun 19, 8:24 PM CDTTornado WarningPAH26 min
Jun 20, 1:07 AM CDTMesoscale DiscussionSPC53 min
Jun 20, 1:11 AM CDTSevere Thunderstorm WarningPAH49 min
Jun 20, 1:34 AM CDTSevere Thunderstorm WatchSPC4 hr
Jun 21, 1:53 PM CDTHeat AdvisoryPAH54 hr
Jun 26, 12:45 AM CDTHeat AdvisoryPAH44 hr
Jul 11, 6:45 AM CDTAreal Flood AdvisoryPAH2 hr
Jul 11, 7:48 AM CDTFlash Flood WarningPAH3 hr
Jul 11, 10:44 AM CDTFlash Flood WarningPAH3 hr
Jul 12, 1:05 PM CDTMesoscale DiscussionSPC85 min
Jul 12, 2:50 PM CDTAreal Flood AdvisoryPAH98 min
Jul 16, 11:02 PM CDTMesoscale DiscussionSPC88 min
Jul 25, 1:26 AM CDTSevere Thunderstorm WatchSPC4 hr
Jul 30, 1:22 PM CDTAreal Flood AdvisoryPAH3 hr
Aug 19, 11:26 PM CDTSevere Thunderstorm WatchSPC9 hr
Aug 20, 9:44 PM CDTAreal Flood AdvisoryPAH61 min
Sep 3, 5:05 PM CDTAreal Flood AdvisoryPAH55 min
Sep 6, 5:35 AM CDTAreal Flood AdvisoryPAH3 hr
Sep 25, 11:11 PM CDTDense Fog AdvisoryPAH11 hr
Sep 26, 1:42 PM CDTMesoscale DiscussionSPC93 min
Sep 26, 1:54 PM CDTSevere Thunderstorm WarningPAH51 min
Sep 26, 2:27 PM CDTSevere Thunderstorm WatchSPC5 hr
Sep 26, 9:38 PM CDTDense Fog AdvisoryPAH12 hr
Sep 28, 1:53 AM CDTLake Wind AdvisoryPAH17 hr
Oct 7, 3:35 PM CDTFlood WatchPAH45 hr
Oct 8, 5:26 PM CDTMesoscale DiscussionSPC2 hr
Oct 8, 8:58 PM CDTFlash Flood WarningPAH6 hr
Oct 9, 3:13 AM CDTAreal Flood AdvisoryPAH4 hr
Oct 17, 3:56 AM CDTFrost AdvisoryPAH29 hr
Oct 28, 4:20 AM CDTFlash Flood WatchPAH61 hr
Oct 30, 8:01 AM CDTAreal Flood WarningPAH6 hr
Dec 8, 2:50 AM CSTWind AdvisoryPAH36 hr
Dec 21, 6:07 AM CSTFreezing Fog AdvisoryPAH3 hr
Dec 22, 3:06 AM CSTFreezing Fog AdvisoryPAH6 hr
Dec 23, 9:48 AM CSTWind AdvisoryPAH53 hr
Dec 23, 8:45 PM CSTFlood WatchPAH27 hr
Dec 24, 5:54 PM CSTAreal Flood AdvisoryPAH6 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

ProductAlerts
Severe storms
Severe Thunderstorm Warning6
Tornado Warning2
Severe Thunderstorm Watch12
Tornado Watch4
Mesoscale Discussion40
Flooding
Areal Flood Warning1
Flash Flood Warning6
Flash Flood Watch2
Flood Watch2
Areal Flood Advisory12
Winter
Winter Storm Warning1
Winter Storm Watch1
Winter Weather Advisory1
Heat
Heat Advisory3
Cold
Freeze Warning2
Freeze Watch2
Frost Advisory2
Wind Chill Advisory1
Wind and dust
High Wind Warning1
High Wind Watch1
Lake Wind Advisory6
Wind Advisory6
Fog and smoke
Dense Fog Advisory3
Freezing Fog Advisory2

The busiest days

Days with the most alerts issued, by UTC date.

  1. May 8, 20097alerts
  2. June 11, 20096alerts
  3. March 8, 20095alerts
  4. May 13, 20095alerts
  5. May 14, 20094alerts
  6. June 2, 20094alerts
  7. June 20, 20094alerts
  8. September 26, 20094alerts
  9. April 5, 20093alerts
  10. June 8, 20093alerts

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20082010

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.